Ca2+ signalling in plant immune response: from pattern recognition receptors to Ca2+ decoding mechanisms

New Phytol. 2014 Dec;204(4):782-90. doi: 10.1111/nph.13031.


Ca2+ is a ubiquitous second messenger for cellular signalling in various stresses and developmental processes. Here, we summarize current developments in the roles of Ca2+ during plant immunity responses. We discuss the early perception events preceding and necessary for triggering cellular Ca2+ fluxes, the potential Ca2+-permeable channels, the decoding of Ca2+ signals predominantly via Ca2+-dependent phosphorylation events and transcriptional reprogramming. To highlight the complexity of the cellular signal network, we briefly touch on the interplay between Ca2+-dependent signalling and selected major signalling mechanisms--with special emphasis on reactive oxygen species at local and systemic levels.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Calcium / metabolism*
  • Calcium Channels / metabolism
  • Phosphorylation
  • Plant Immunity / physiology*
  • Receptors, Pattern Recognition / metabolism*
  • Second Messenger Systems
  • Signal Transduction


  • Calcium Channels
  • Receptors, Pattern Recognition
  • Calcium